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Charge Kondo circuit as a detector for electron-electron interactions in a Luttinger liquid

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Title
Charge Kondo circuit as a detector for electron-electron interactions in a Luttinger liquid
Author(s)
Nguyen, T.K.T.; A.V. Parafilo; Nguyen, H.Q.; Kiselev, M.N.
Publication Date
2023-05
Journal
Physical Review B, v.107, no.20
Publisher
American Physical Society
Abstract
We investigate the effects of the electron-electron interactions on the quantum transport through a charge Kondo circuit. The setup consists of a quantum dot sandwiched between two leads by two nearly transparent single mode quantum point contacts. The size of the interacting area L in the Luttinger liquid formed in the vicinities of the narrow constrictions is assumed to be much smaller compared to the size of the quantum dot a. We predict that the interplay between the electron-electron interactions in the Luttinger liquid and the fingerprints of the non-Fermi liquid behavior in the vicinity of the two channel Kondo intermediate coupling fixed point allows one to determine the interaction strength through the power-law temperature scaling of the electric conductance. © 2023 American Physical Society.
URI
https://pr.ibs.re.kr/handle/8788114/13439
DOI
10.1103/PhysRevB.107.L201402
ISSN
2469-9950
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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